#145490 is a mid-toned, cool indigo. On the Color Lab it reads clean and engineered, quietly premium. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #145490 works with other colors. Named schemes with #145490 in its natural role, and a note on why the supporting colors balance it.
Classic Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Classic Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Classic Blue.
Classic Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Classic Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Classic Blue is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Classic Blue carrying the quiet middle.
How #145490 actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.
Not a swatch to memorise — a color to build with. Here is #145490 at work across the surfaces designers actually ship.
:root {
--color-base: #145490;
--color-base-rgb: 20 84 144;
--color-base-oklch: oklch(44.0% 0.116 251.5);
--color-50: #F1F8FE;
--color-100: #DAEBFB;
--color-200: #B7D7F5;
--color-300: #87B9E9;
--color-400: #5A9BD8;
--color-500: #377DBD;
--color-600: #326290;
--color-700: #294866;
--color-800: #1E3143;
--color-900: #141F29;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
classic-blue: {
50: '#F1F8FE',
100: '#DAEBFB',
200: '#B7D7F5',
300: '#87B9E9',
400: '#5A9BD8',
500: '#377DBD',
600: '#326290',
700: '#294866',
800: '#1E3143',
900: '#141F29',
},
}
$base: #145490; $base-ink: #FFFFFF; $base-50: #F1F8FE; $base-100: #DAEBFB; $base-200: #B7D7F5; $base-300: #87B9E9; $base-400: #5A9BD8; $base-500: #377DBD; $base-600: #326290; $base-700: #294866; $base-800: #1E3143; $base-900: #141F29; $base-hover: #104373; $base-subtle: #ADCCE9;
{
"color": {
"base": {
"value": "#145490",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F1F8FE",
"type": "color"
},
"100": {
"value": "#DAEBFB",
"type": "color"
},
"200": {
"value": "#B7D7F5",
"type": "color"
},
"300": {
"value": "#87B9E9",
"type": "color"
},
"400": {
"value": "#5A9BD8",
"type": "color"
},
"500": {
"value": "#377DBD",
"type": "color"
},
"600": {
"value": "#326290",
"type": "color"
},
"700": {
"value": "#294866",
"type": "color"
},
"800": {
"value": "#1E3143",
"type": "color"
},
"900": {
"value": "#141F29",
"type": "color"
}
}
}
}